Раскройте скобки поставьте глаголы в The Present Perfect Tense
в этих предложениях
Например:
1. He (write) already a new song.- He has already written a new song.
2. She (enter) a photo compretition-
3. He (visit) the museum-
4. We (change) our plan-
5. I (be) to the USA-
6. Linda and Mark (start) making a school magazine-